G502 移動するピストンを有するシリンダー内部流れに関する研究(2)(GS-5 数値シミュレーション,一般セッション)

概要

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Recent years, developments of a computer have enabled to analyze a complicated problem in the area of fluid dynamics. Flows with moving boundaries can be encountered in many practical situations; among those in which considerable research interest are in-cylinder flows in positive displacement pump, flows in blood vessels, etc. However many numerical methods of unsteady flow have been presented, numerical analyses with moving boundary have been considered by few papers. In this study, arbitrary-Lagrangian-Eulerian method is employed to analyze the in-cylinder flow that has moving piston. To validate computational accuracy, we carried out measurement of the flow by Particle Image Velocimetry method. Computational results are in good agreement with experiments, but there were some difference of vortex structure.
一般社団法人日本機械学会の論文
2006-10-28